Q: If I buy a Yamaha EF3000i for work an play. My question is if I use the gen to charge my 12 volt 100 amp battery, how long would it take? And would using the gen be more efficient and time saving rather than getting solar panels or a wind gen to charge the batteries when using batteries for power?by Ron Jolin from Minnesota on February 05, 2013

A: This power source is designed to charge batteries up to 40 Ah (Amp hours) that are half-discharged. Do not charge batteries of a higher capacity then 40 Ah.

12VDC Battery

The time required for recharging a battery varies depending on the discharge level of the battery. When the specific gravity of the battery reaches 1.26 to 1.28, charging is complete. When charging, check the battery's specific gravity once an hour.

The average time for charging a half-discharged 40 Ah battery is approximately 5 hours. Be sure to check the battery fluid level before charging.

Notice:**Do not connect any load to the battery or use the engine starter motor while charging. This causes higher current to flow through the generator which will burn out the coil.**Do not connect a VRLA (Valve Regulated Lead Acid) battery. To Charge a VLRA battery, a special (constant-voltage) battery charger is required.

Q: I am trying to decide whether I should get the Yamaha EF300iS or the iSEB boost model. I know these are aimed at the RV/Camping market, but I am planning to use as emergency power at my house and like these for the quiet operation and long run times between refueling when compared to others.

I would be planning to run about a 5 amp small freezer, a 10 amp refrigerator, and about a 10 amp single room air conditioner. Since the refrigerator and freezer only run intermittently I think this generator will run that load.. and if needed I can unplug the freezer overnight when the room air conditioner will be used. So is the boost technology worth it for this sort of application?

I won't be starting any one large motor like the RV air conditioners I keep seeing mentioned for the iSEB but rather intermittently starting these smaller motors.by Alan Felsen from Maryland on July 06, 2012

A: Alan, air conditioners require a lot of electricity to turn over - regardless if they are window units or RV units.

If you insist on getting a Yamaha, go with the boost version to make sure the air conditioner works.

Our recommendation, however, is to get a larger emergency generator designed for power outages instead of camping. It'll be cheaper and power more things.

After running 60 days ago and having a threat of heavy snow I went out to start the Yamaha 3000. Expecting to pull and pull I was pleasantly surprised to have it start on the 3rd pull. After it warmed up I turned on ECO mode and it was so quiet I almost forgot it was running. I used it to start my snow blower. No Problem!!

I always use gas stabilizer and Sea Foam and turn off the fuel valve to make it think it ran out of gas before storage. I also have a honda EM5000 which as far as I am concerned is not as good as the Yamaha 3000!! The 3000 purs! I am seriously considering getting another 2000 just for the furnace ! And letting the 3000 run the rest of the house.

EGD was great! From ordering to delivery. GREAT PACKAGING !!No Hassles at all and great phone support! I would just like to add that even though the nearest Yamaha service is 15 miles away I would order a yammy form here again!

On the other hand I had to search for a honda service that would honor my warranty.

PS: the Honda needs service for a choke problem (not bought from EGD) but the Yammy runs great.

Thank you EGD I now feel prepared!!!

After running 60 days ago and having a threat of heavy snow I went out to start the Yamaha 3000. Expecting to pull and pull I was pleasantly surprised to have it start on the 3rd pull. After it warmed up I turned on ECO mode and it was so quiet I almost forgot it was running. I used it to start my snow blower. No Problem!!

I always use gas stabilizer and Sea Foam and turn off the fuel valve to make it think it ran out of gas before storage. I also have a honda EM5000 which as far as I am... more

Pros:High Quality, Quiet, Exceeded Expectations, I'd Buy It Again

Cons:Heavy

Vito Recommends This Yamaha Product

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293

JoeDayton, OH

Purchased 5/31/12

20 Helpful Votes

REVIEWED

JUN.

24

2012

Easy Pull Starting

I have used this model on two camping trips. It runs my 13.5 BTU A/C unit no problem. Runs about 8 hours with A/C going before fueling up again. Super quiet and super easy to pull start, my 9 year old daughter can start it.

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200

Don M.

20 Helpful Votes

REVIEWED

JUN.

25

2013

Great Value For A Yamaha

I use this unit primarily for home backup power. Very quiet and long running. The cost of quiet and long running is that this is a big, heavy unit for its 3000 watt model. But I easily roll it in and out of the garage. The only reason for an electric start is remote operation. Anyone capable of moving and fueling a generator can easily pull start this unit. It's no harder to start than a quality lawn mower.

I don't believe that the boost model is necessary unless a large single load is attached. A refrigerator or furnace is not a large single load for this size generator. I power a refrigerator, boiler, TV and lights easily with this unit. I have central A/C, and just use fans during power outage. If I had a larger window A/C I would spend the money for the boost model, or a larger generator.

I use this unit primarily for home backup power. Very quiet and long running. The cost of quiet and long running is that this is a big, heavy unit for its 3000 watt model. But I easily roll it in and out of the garage. The only reason for an electric start is remote operation. Anyone capable of moving and fueling a generator can easily pull start this unit. It's no harder to start than a quality lawn mower.

I don't believe that the boost model is necessary unless a large single load is... more

This is really the best value out there if you want a generator quieter than most, and durable.... you get all the extras that Honda would charge you extra for, for free. One thing I like better about the Yamaha is it's built on a frame that goes throughout the generator. You can find videos on YouTube where people take them apart for basic servicing and its clearly evident that the handles are welded to a frame that goes through the whole generator. This is a big plus if you plan to chain it to something for security.

Whereas the Honda's appear to have cheaper handles and more plastic parts holding it all together. I decided against electric start and the SEB model because I don't anticipate using this often and don't want to have to replace batteries over the years and deal with all that. I like the brushless alternator also, this thing is clearly built to last with minimal maintenance. The wheels make it easy for one person to roll around. There is also a fuel gauge on top of the unit. This generator is just big enough to run a full size fridge or freezer in addition to maybe a light, a TV, and maybe a fan.... just the basics to get you through a power outage.

The generator arrived in perfect condition and was delivered on a lift-gate truck as requested. I put oil in it, turned over the engine a few times, and parked it in the garage... it's too cold this time of year to bother with running it and I plan to do that in the spring. I have no doubts this thing will run great.

This is really the best value out there if you want a generator quieter than most, and durable.... you get all the extras that Honda would charge you extra for, for free. One thing I like better about the Yamaha is it's built on a frame that goes throughout the generator. You can find videos on YouTube where people take them apart for basic servicing and its clearly evident that the handles are welded to a frame that goes through the whole generator. This is a big plus if you plan to chain... more

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192

Jon

16 Helpful Votes

REVIEWED

DEC.

31

2012

Quiet Is A Blessing

I bought my Yamaha inverter from E. G. DIRECT. This was the best purchase that I made in 2012 . It was delivered in perfect condition when it arrived. I couldn't wait to open it and get that bad boy running.

A quart of oil and a gallon of gas later,I pulled the starter chord and it started smooth and easy. So quiet I couldn't believe it. First thing I plugged in was my circular saw and my hammer drill.

Full power on both and the generator barely raised a decibel. I bought an inexpensive shed, put the Yamaha in and my neighbors will never know I have a generator.

No regrets,except I wish I would have done it sooner!

I bought my Yamaha inverter from E. G. DIRECT. This was the best purchase that I made in 2012 . It was delivered in perfect condition when it arrived. I couldn't wait to open it and get that bad boy running.

A quart of oil and a gallon of gas later,I pulled the starter chord and it started smooth and easy. So quiet I couldn't believe it. First thing I plugged in was my circular saw and my hammer drill.

Full power on both and the generator barely raised a decibel. I bought an inexpensive... more

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160

Thomas M.Fallston, MD

13 Helpful Votes

REVIEWED

FEB.

14

2014

The Mighty Little Blue Generator

This little blue yamaha is so easy to use and has very good output. I lost power, ran it for two days straight. Very happy it ran the heating unit to my 4,000 sq ft home plus frig. ect. Whats not to like about little blue.

Pros:High Quality, Quiet, Reliable, Price

Thomas Recommends This Yamaha Product

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130

Bill

Purchased 12/27/12

13 Helpful Votes

REVIEWED

FEB.

07

2013

Ef3000is Inverter

This inverter is as advertised. This is a good quality inverter that starts easily, is easy to maintain and is solidly built. This is why it is heavy at 140 lbs.

The wheels seem small when rolling over the lawn. Economy mode is great on gas and it steps up for a heavy load.

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130

BryonMiddletown, PA

Purchased 10/30/12

2 Reviews

REVIEWED

NOV.

19

2012

I'm In Love...

What more can I say. My Yamaha EF3000iS is awesome so far.

I put gas and oil in, pulled the choke and pull starter, and off she went. Quiet- you want to talk about quiet, this runs at a low hum in Eco mode. It's a bit louder when running at full draw, but quieter than I would have ever expected.

It's a bit hefty, but that should be expected. The built-in wheels make it easy to move around by myself. Plan on a friend or strong wife to help get it in and out of your truck.

It's great looking with great functionality all in one compact, quiet package.

The cover fits a little tight, but I guess that will loosen up over time. Great quality and protection.

Overall, extremely satisfied.

What more can I say. My Yamaha EF3000iS is awesome so far.

I put gas and oil in, pulled the choke and pull starter, and off she went. Quiet- you want to talk about quiet, this runs at a low hum in Eco mode. It's a bit louder when running at full draw, but quieter than I would have ever expected.

It's a bit hefty, but that should be expected. The built-in wheels make it easy to move around by myself. Plan on a friend or strong wife to help get it in and out of your truck.